A Comb-Line Antenna Modified for Wideband Circular Polarization

作者：Hirose Kazuhide^*; Shinozaki Keita; Nakano Hisamatsu

来源：IEEE Antennas and Wireless Propagation Letters, 2015, 14: 1113-1116.

DOI：10.1109/LAWP.2015.2394811

• Circular polarization
• comb-line antenna
• loop antenna

A sequential rotation technique is newly applied to a circularly polarized (CP) comb-line antenna. The antenna is analyzed using the moment method. First, a novel loop antenna is proposed as a CP radiation element. Next, the loop element is used for a comb-line antenna to radiate a CP wave. This reference antenna shows a bandwidth of 3% for a 3-dB axial-ratio criterion. Last, the comb-line antenna is modified for wideband CP radiation. It is both numerically and experimentally revealed that the CP wave bandwidth is wider than that of the reference antenna by a factor of five.

• 出版日期2015